Adjustments; Functioning Modes - Nice OTA 30 Manual De Instrucciones

English
G) Now it is time to check connections of the limit switches' inputs (only if used in the OTTO version).
See that the gate is about halfway so as to have a good margin for movement in either direction.
Manually operate the OPEN limit switch, bringing it into the triggering position; now give a few pulses on the Step-by-Step input
(always an even number) and check that the gate moves only in the closing direction; now cause the CLOSE limit switch to
trigger and check that the only direction of movement is the opening one.
H) It is now possible to attempt a complete movement of the actuators. Slightly increase working time by turning the TL trimmer
clockwise. Operate on the command input and move the gate up to the open point; if everything goes normally you can then go on
to the closing manoeuvre and move the gate until it reaches the stop point. It is worthwhile carrying out several opening and closing
manoeuvres so as to evaluate any defects in the automation's mechanical structure and also to detect any specific points of friction.
I) Now test triggering of the safety devices connected to the PHOTOCELL input.
In the opening manoeuvre they have no effect but in the closing manoeuvre they will stop movement. The devices connected to
the STOP input act both in the opening and closing manoeuvres, stopping movement each time.

3.1) ADJUSTMENTS:

After the system has been checked the few adjustments needed to guarantee the proper working order of the system and to
ensure a correct and safe operation can now be done.
Point 6.1.5 of the UNI 8612 89th Edition standards states, in order to prevent crushing hazards, among the possible
measurements, that torque limiting devices can be used and adjusted so that maximum gate thrust measured on the corner of
the wing does not exceed 150 N (about 15 kg).
There is an adequately powered autotransformer on the unit with intermediate
sockets on the primary winding and which can be selected by means of a special FORCE
commutator. With this technique a variable voltage can be applied to the motor.
Turn the commutator round to the most suitable position to reduce motor force until you
reach the value established by the standards.
Whatever the force adjustment is for the initial movement phase the motor is given
maximum force for 1.5 seconds; only after this time, defined "Inrush", is the force re-
established.
While the unit is working, both the opening and closing manoeuvres go to time; this is both for safety reasons (if, for any
reason, the motor should shutdown it will be turned off anyway at the end of the time), and because, in the case of "automatic"
functioning, at the end of the working time the pause starts followed by reclosing.
Start by adjusting the Working Time trimmer to halfway, now cause a complete manoeuvre and then adjust it so that the time is
long enough to carry out the complete manoeuvre with still a margin of 2 or 3 seconds.
Do not forget that if there are any limit switches, when the gate reaches the limit, the motor will stop because the corresponding
command relay (OPEN or CLOSE) is de-energised while the COMMON relay remains active until the time has elapsed.
If the automatic functioning mode has been selected (dip-switch No. 1 ON), the end of the opening manoeuvre is followed
by a "pause" time at the end of which a closing manoeuvre follows automatically. The time the gate or door stays open can be
adjusted with the PAUSE TIME trimmer for the length of time you want, without any limits.
Only now, when all the adjustments have been made, do we advise you to plug in the radio receiver if you have one,
reminding you that the commands it sends are sent to the STEP-BY-STEP input.

3.2) FUNCTIONING MODES:

The unit has two distinct functioning modes, semiautomatic and automatic, which can be selected by means of a dip switch.
When operating in the semiautomatic mode, a command pulse on the STEP-BY-STEP input consents to the alternative
movement of opening and closing according to the OPEN-STOP-CLOSE-OPEN sequence.
In the opening manoeuvre, movement stops when the FCA limit switch triggers; to the contrary, in the closing manoeuvre,
movement stops with the FCC limit switch triggers or if there is no consent from the PHOTOCELL. Whether closing or opening,
a STOP command will always cause the immediate stopping of movement. Once movement has stopped a new command pulse
must be given to start another movement.
A PHOTOCELL command has no effect on an opening manoeuvre while in closing it causes movement to stop and maybe a
remote reversal if activated by the relative dip switch.
If the automatic functioning mode has been selected, an opening manoeuvre is followed by a pause and then by a closing
manoeuvre.
If, during the pause time, the PHOTOCELL triggers, the timer will be reset with a new pause time; if, on the other hand, during
the pause time STOP is operated, the reclosing function is cancelled and goes to a STOP state.
16
Fig. 3
MIN
— 30%
— 45%
— 60%
— 80%
— 100%
MAX